/* Chat Container */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 9vh);
    max-width: 900px;
    margin: 9vh auto 0;
    background-color: var(--background-color);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.chat-header {
    background-color: var(--primary-color);
    color: var(--background-color);
    padding: 1.5rem;
    text-align: center;
    border-bottom: 3px solid var(--accent-color);
}

.chat-header h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 600;
}

.chat-header .subtitle {
    margin: 0.5rem 0 0;
    font-size: 1rem;
    opacity: 0.9;
}

/* Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    display: flex;
    margin-bottom: 0.5rem;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-content {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    max-width: 80%;
    word-wrap: break-word;
    line-height: 1.5;
}

.user-message {
    justify-content: flex-end;
}

.user-message .message-content {
    background-color: var(--primary-color);
    color: var(--background-color);
    margin-left: auto;
}

.assistant-message .message-content {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

.message-content strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.loading .message-content {
    opacity: 0.7;
    font-style: italic;
}

/* Input Container */
.chat-input-container {
    padding: 1rem;
    background-color: #fff;
    border-top: 2px solid var(--accent-color);
}

.input-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

#messageInput {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--accent-color);
    border-radius: 24px;
    font-size: 1rem;
    font-family: inherit;
    resize: none;
    min-height: 44px;
    max-height: 150px;
    overflow-y: auto;
    transition: border-color 0.2s;
}

#messageInput:focus {
    outline: none;
    border-color: var(--primary-color);
}

.send-button {
    background-color: var(--primary-color);
    color: var(--background-color);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    flex-shrink: 0;
}

.send-button:hover {
    background-color: var(--accent-color);
    transform: scale(1.05);
}

.send-button:active {
    transform: scale(0.95);
}

/* Scrollbar styling */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: var(--background-color);
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Responsive design */
@media (max-width: 768px) {
    .chat-container {
        max-width: 100%;
        margin: 9vh 0 0;
        border-radius: 0;
    }

    .message-content {
        max-width: 90%;
    }
}